Boiler



June 27, 1933. o. THOMSEN, SR

BOILER Filed March 24, 1932 Patented June 27, 1933 near!) 'srnras lifPiATE-NT" OFFICE, I

' osonn 'rnoiusnn, SR, or, FLEMINeTonQnEwJE-Rsnmassreivon To remain BOILER conrnnninc, or FLEMING-TON, new JERSEY, A conronn'rron or new JERSEY BOILER Applicationfiled March 24, 1932. Serial N0."600,860.

This invention relates broadly to vapor generators and more particularly to boilers. In one of its aspects, the invention relates to the tubes in which vapor is, generated in genuid base and the vapor dome, which circu-v lating columns are divided into two separate 539 with the liquid base and the other of which is in communication withthe vapor dome,

and of a plurality of reversely bent tubes which affords communication between the respective passages so that the flow of vapor generated in'the tubes is unimpededby the presence ofliquid delivered to the subsequent superimposed tubes. P

It is also an object of the inventionto provide tubes and circulating columns therefor,

which is practical from the standpoint of ease and cheapness of manufacture and convenience in installation and use. 5

These and other objects of the invention and the means for-their attainment will be more apparent from the following detailed description taken in connection with the accompanying drawing, illustrating one em bodiment as applied to a boiler or steam generator by which the invention may be realized, and in which I Figure 1 is a view in side elevation, showing a series of tubes mounted upon a circulating columniin accordance with this invention,separate passages of which columns are connected to a water base andsteam dome, fragmentary parts of which are illustrated; Figure 2 is-anenlarged view in elevation, looking from the left of Figure 1; c

Figure 3 's, a detail view onan enlarged passages, one of'which is in communication;

scalepp'artly in, elevation and partly in-s'ec- 1' tion, taken in the planes indicated by the broken line 3-3 of Figure 2 Figure 4 is-a view looking from the left of Figure 3; and g Figure 5 is a transverse sectional view takenin the plane indicated by-the line 5-5 ofFigure'L I 1 i lVhiIe the invention'has been illustrated I andhwill be described as appliedto the generation of steam, it will be readily apparent that itis equally applicable in any situation where vapor isto be generated from a liquid and while the terms water base, steam dome., waterand steam are used throughout the descriptiomthey are to be consideredas illustrative only of the application and the term steam dome is broadly usedI to; denote any reservoir or container forany vapor, such as apipe, drum or other denote any vapor generator.

vention may take any desired form and, therefore, details of thesame are not illustrated. Suffice it to say that the boiler may have a water base of any convenient form, a fragmentaryportion of which at one s ide of the boiler is indicated at 10. Similarly, a fragmentary portion of a steam-dome or its equivalent'is indicated at 12.

vExtending upwardly 10 is a waterleg, indicated at 14, to which The generator or boiler employing this in from the water base vessel, and the term boiler is intended to I may besecured a plurality of circulating ool-,

umns and to whicha seriesof boiler tubes 16,18 are connected. 7 Similarly, the steam dome is shown as provided with a depending leg 20 with which the upper end of the circulating column, in accordance with this in-' vention, is in communication'in any convenient fashion, Slip nipples are illustrated as such connecting .means. The circulating column may be disposed on oneor both sides of the boiler-as will be'understood. Since their disposition forms no part of theinvention, only one circulating column is illustrated and will be described. Circulating columns forming the subject matter of. this invention are shown, as formed of two circulating column members 22and each having separate passages, as illustrated clearly in Figure 2. Thus, extending upwardly from the water base 10-14 is a circulating column section or member 22 enlarged at its lower end, as at 24, to receive a slip nipple 26 by which communication is had with the water leg 14. This member 22 will be referred to as the Water column passage or generally as a circulating column member. It is provided with a downwardly directed flange orear 25, suitably slotted, by which it is bolted or otherwise conveniently secured to the water base and by which a tight oint with the slip nipple is attained. The water column passage extends upwardly to the upper end of the boiler and is provided at 1ts upper end with an car 28 by which it is secured to a cooperating ear 29 on a companion depending steam conducting circulating column member 30, as by a removable connectionshown as a bolt 32. The depending circulating, column member 30 is identical with the water column circulating header except that it is in reverse position when installed in the boiler, and similar reference characters are ailixed thereto. Similar reference characters have been applied to its connection both above and below so that the description of the fastening of the one member will suffice for the pair. Thus these two companion members are interchangeable and the manufacturing of the circulating columns is facilitated and simplified. I

The enlarged end or head24iat one end of the circulating column22 or 30 is offset there from or laterally overhangs the column a dis-- tance substantially equal to the width of said column. The head 24 is hollow across its full double width and consequently accommodates the enlarged port 26. The hollow or chambered portion 24: is defined by a closing side wall which follows around the port and nipple 26 and then turns downwardly and forms one sidewall of the narrow water col umn 22 or 30. However, the-front wall or face of the chamber 24 projects beyond the nipple and port 26 and forms the flat rectangular ear 29 which laps over and forms securing means with the ear 28 provided on the other end of the inverted and cooperating circulating column section. Thus the two anchorage ears 28 and 29 with bolt 32 therethrough occupy that space defined by the overhanging head 24 terminating in the flat front corner 29. It follows, therefore, that the narrow end and ear 28 of the other column tits up into and behind the space defined by the flat front e2 piece 29 to produce a circulating column ofinveiteql sections forming a closely joined rectangularmember 22, 3O and that a plurality of these assembled pairs can be set one against the other to produce a closedwallto house or enclose the steam genera-ting tubes 16,18.

The boil'er tubes 16-18 are rever'sely bent 30. Thus in effect the column section. 22 is u 1 hlled witn water, as well as the lower halves 16 of the respective tubes. t is in these lower parts 16 that the steam is generated and flows through the upper tube halves 18 into the steam passage in the other column section 30 through which the steam passes into the steam dome unimpeded by water. Any water of condensation which may occur or iind its way into the steam passage 30 will be returned to the water column 22 and/or water base 10 through the lowes tube, since it will be observed that the arm 18 of the lowest boiler tube communicates with the steam passage 30 at the very end or lowermost part of the passage. Similarly, steam cannot be trapped in the water passage 22 because the lower arm 16 of the uppermost boiler tube is connected with the uppermost end of the water passage and must find its way 'to the steam passage 30 and hence to a steam dome. Here, again, it will be noted that the holes for the ends of the boiler tubes, formed in each circulating column section or member 22 and 30, are" correspondingly placed so that the two sections are interchangeable. The elongated hollow portion of each circulating column member 22 and 30V ias a single row of circulating tube openings in at least a part of its length and preferably the entire length of the elongated hollow portion a single row of tube openings as shown in the drawing. The hollow portions of each circulatingcolumn member 22 and 30 which carry a single row of tube openings are placed side by side and secured together in this position to form a combined rectangular circulating column.

' It will thus be seen that a boiler tube and circulating column construction has been provided which assures a positive one way circulation, which increases the efficiency of steam generation and permitsof the use of interchangeable parts.

Various modifications will occur to those skilled in the art in the configuration and disposition of the sectioned circulating column of this invention as well as its incorporation into a boiler or vapor generator or other use to which. it may be put, and no limitation is intended by the p-hraseolo'gy of the foregoing description or illustrations in the accompanying drawing, except as indicated inthe appended claims.

What is claimed is v 1. As an article of manufacture, a circulating column memberfor vapor generators comprising an elongated hollow portion having an enlarged end, the enlarged end being offset laterally and substantially double the member width andiada pted to form a'rectangular combined circulating column with a second inverted member, an opening in said enlarged end for connection witheither a liquid base or a vapor dome, a plurality of holes in said member in the elongated hollow end for connection with the enlarged end of a companion member.

2. As. an article of manufacture, a c1rcu-. lating column member for vapor generators comprising an elongated hollow portion hav ing an end enlarged substantially double the width of the hollow portion and adapted to form a rectangular combined circulatingcolumn with a second inverted member, an openingin said enlarged end for connection with either a liquid base or a vapor dome, said opening being at least as largeas'the passage through the elongated hollowportion anddirected laterally thereof for lateral connection with a liquid base or a vapor dome, a plurality of holes in theelongated hollow portion to receive tubes, securing means at the. enlarged end for securing the member to either a liquid base or a vapor dome, connecting means inwardly of the enlarged end and forming a rectangular end for connection with the endnot enlarged of a companion member, and-connecting means at the remote end for connection with the enlarged end of a companion member.

3. A vapor generator comprising a steamdome, a water base, a plurality of circulating columns placed closely ad a-cent each other, each circulating column including a pair of identical circulating column members one being inverted relatively to the other, each member having an elongated hollow portion, an end on each elongated hollow portion enlarged substantially double the width of the hollow portion and adapted to form a rectangular combined circulating column with the inverted second member, an enlarged opening directed laterallyin said enlarged ends for connection with the steam dome and the water base, and securing means at each end of said circulating column members whereby said members are secured together.

4. As an article of manufacture, a circulating column member for vapor generators comprising an elongated hollow portion having an enlarged hollow end substantially double the width of the elongated hollow portion and extending laterally to one side ofthe member and adapted to form a rectangular combined circulating column with a second inverted member,'an opening in said enlarged end for connection with either a liquidbase or a vapor dome, a. plurality of holes in said member to receive tubes, and securing means at each end whereby said member may be secured to an inverted identical circulating I column member.

5, As an article, of manufacture, a circulatmg columnmember for vapor gener' tors comprising an elongated hollow portion haw ing an enlarged hollow end substantially double the width of theelongated hollow portion and extending laterally to one side of the member and adapted to form a rectangular combined circulating column with a second inverted member, an opening in said enlarged end for connection-with either a liquid base or a vapor dome, said opening extending laterally from the enlarged hollow end, a plurality of holes'insaid member to receivetubes, and securing means at each end I whereby sa d member may be secured to an inverted identical circulating column mem- 6. As an article of manufacture, a circu- Eating column member for vaporgenerat'ors compr sing an elongatedhollow portion havmg an enlarged-hollow end substantially double the width of the elongated hollow portion and extending laterally to one sideof the member and adapted to form a rectangular combined circulating column with asecond inverted member, an opening in said enlarged end for connection with either a liquid base" or avapor dome, saidopening being at least I as large asthepassage inlthe elongated hollow portion, a plurality ofholes in said member to I'GCGIVG tubes, and securing means at eache'nd whereby said member may be secured to an inverted identical circulating column member. i I 7. As an article of manufacture, a hollow circulating column member for vapor generators comprising an elongated hollow portion v havin g an enlarged hollow end substantially double the width of the elongated hollow portion and extending laterally to one side of the member and adapted to form :1 rectangular combined circulating column with a second identical circulating column member in inverted position, an opening in saidenlarged end for connection with either a liquid or a vapor dome, said opening extending 'allv from the enlarged hollow end and being at least as large as the passage through the elongated hollow portion, a plurality of holes in said elongated hollow portion to re ceive tubes, securing means at the enlarged end for securin the member to either a u I as liquid base or a vapor dome,a first connectinn; pro ecting from the enlarged end of the c rculating hollow member and along the side of the elongated hollow portion, said coimcctzng flange being flush with the wall of the circulating column member and with the I enlarged hollow end forming a rectangular end. for connectionwith the endnot-enlarged of iacompanion member, and a second connecting means projecting from the remote- -end for connection with a connecting flange bein inverted relativelrto the other and forming arectangular circulating column, each circulating column member having an elongated hollow portion, circulating tubes connecting together the inverted circulating colu1n.n members of each circulating column,

the-end of each circulating column member having a substantial width, the end of each circulating column member having a laterally directed enlarged opening for connection with. the-steam dome and the water base, the opening being substantially larger than the cross sectional. area of a circulating tube, and securing means for securing the circulating column. members together.

9. A circulating column. for a vapor generator comprising a pair of identical circula ing column members one being inverted relaeach circulating column member forming a tivelyto the other and forming a rectangular circulating column, each member having an elongated hollow portion, circulating tub-es connecting together the hollow portions of 1,-e. men? I single circulatingcolumn, the end of each circulating column member having a substantial width, the end of each elongated hollow portion having a laterally directed enlarged opening adapted to be connected with a steam dome and a water base of a vapor generator, the opening being substantially larger than thecross sectional area of a circulating tube, and securing means for securing-the circulating column members together.

. 10, A circulating column for a vapor generatorcomprising a pair of identical circulating colunnimembers one being inverted rela tively to the other, each member having an elongated hollow portion having a single row oi": 'rculating tube openings in at least a part of its length, the hollow portionof each inverted circulating column member having a single row of circulating tube openings being position-ed side by sideto form a rectangular circulating column, circulating tubes secured in the circulating tube openings and connecting together the hollow portions of each circulating column member forming a single circulating column, an end of each circulating column member having a substantial width, said end of each circulating column member having a laterally directed enlarged opening adapted to be connected with a steam dome and a water base of-a vapor generator, the opening being substantially larger than the cross sectional area. of a circulating tube, and securing means for securing the circulating column members together.

In testimony whereof I ELfl'lX my signature.

OSCAR THOMSEN, sR. 

